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INTAN Jurnal Penelitian Tambang

intan
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Published by Universitas Papua

ISSN : 26553473 EISSN : 27232727 DOI : https://doi.org/10.56139/intan.v4i2.85

Core Subject : Economy, Science, Engineering,

Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Engineering

Fokus dan lingkup Jurnal INTAN adalah Pertambangan baik dalam pengelolaan dan pengusahaan mineral atau batubara yang meliputi eksplorasi, konstruksi, penambangan, pengolahan dan/atau pemurnian atau pengembangan dan/atau pemanfaatan, pengangkutan dan penjualan, kegiatan reklamasi dan pascatambang, kebijakan-kebijakan ekonomi, lingkungan, dan sosial di bidang pertambangan mineral dan batubara. Jadi Jurnal Intan merupakan media untuk menyalurkan pemahaman tentang aspek-aspek sains, teknologi, ekonomi, sosial dan lingkungan dari dunia pertambangan berupa hasil penelitian lapangan atau laboratorium maupun studi pustaka.

Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)

Articles 124 Documents

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TINJAUAN SIFAT FISIS DAN MEKANIS TANAH UNTUK MENETUKAN DAYA DUKUNG TANAH (STUDI KASUS: JALAN BARU KAYU BATU BASE-G JAYAPURA STA 0+200) Reni Rochmawati; Irianto
INTAN Jurnal Penelitian Tambang Vol. 3 No. 1 (2020): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

In the implementation of building construction, ground work was the first step that need attention to support a structure. Currently, an access to a tourism object on top of Swajah mountain Kayubatu Base-G, Tanjung Ria, North Jayapura District of Jayapura has been construct. In terms of constructing around the street, should be noted the soil conditions. This study wants to know the physical properties and mechanical properties of the area. The research result would be based on physical properties soil test according to USCD classification system, AASHTO classification system, and triaxle mechanical test. According to USCD, that Soil I and Soil III are classified as fine grained soil MH-OH group, which is inorganic silt soil or fine sand soil, elastic silt soil and organic clay soil with medium to high plasticity. While, Soil II is classified as fine grained soil CH group, thus inorganic clay soil with high plasticity. Then, according to AASHTO showed that the three soil are classified as A-7-5 group in clay soil. The triaxle unconsolidated-undrained soil test concluded the mechanical properties of cohesive value (c) and shear angle (ϕ) respectively are as follow: Soil I 0,015 kg/cm2 and 12,37o. Soil II 0,012 kg/cm2 and 9,31o. Soil III 0,014 kg/cm2 and 11,21o.

EVALUASI PRODUKSI OVERBURDEN DI PIT SMD2 PT. PAMAPERSADA NUSANTARA DISTRIK KIDECO JAYA AGUNG KALIMANTAN TIMUR Citcy Tiurmaida Manullang; Juanita R. Horman
INTAN Jurnal Penelitian Tambang Vol. 3 No. 1 (2020): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Overburden is a top layer that usually covers the coal layer mined. This layer contains material that has no nutrients, and is usually structured by other various rock layers. Therefore, activities regarding excavation and loading of overburden is very important in order to obtain coal to be produced. In mining operation, it is necessary to evaluate overburden production in a certain period, so that it can be used to increase production in the next period, and to identify the problems occurred in the pit during production calculations. The results from the operation of a PC 3000 include 95% of PA, 50% of UA, 718.74 Bcm/day of productivity and 246,835.76 Bcm of actual production. According to the actual calculations in the SMD2 Pit, the production of PT. PAMA does not achieve target as planned, so a further analysis needed to be taken to assess the biggest cause of loss in the pit. The results highlight that the main parameters for the loss in the pit include rain, slippery, and waiting for equipment.

KETERDAPATAN ALTERASI HIDROTERMAL PADA DAERAH WASEGI (SP3) DAN SEKITARNYA DISTRIK PRAFI KABUPATEN MANOKWARI PROPINSI PAPUA BARAT Ailin Anastasia Yarangga
INTAN Jurnal Penelitian Tambang Vol. 3 No. 1 (2020): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

The geology of Papua promises the availability of various metal minerals. This is because the island of Papua was formed by the convergency of two plates namely the Australian and Pacific Plates which forms subduction zones. The occurrence of tectonic activities has allowed mineral and coal commodities to be appeared upwards to the surface. The purpose of this research is to find out the alteration processes that develop in the study area. The aim is to determine the hydrothermal alteration zonation in the Wasegi and its surrounding areas. Based on field observations, petrographic analysis, and XRD analysis, the alteration that is continueosly occurred in the study area is classified into two zones, namely propylitic alteration zones and silicic / silicified alteration zones. Alteration in this study area is also controlled by carrier lithology. Lithology that carries alteration is originated from diorite, while rocks that act as wallrock are schist. Both roles, burly structures and lithology, greatly influence the process of hydrothermal alteration formation since they are solid as the space where fluid is filled, and lithology as a carrier of hydrothermal liquid acts as a main factor in the alteration process.

SHOTCRETE DELIVERY PROCESS DI TAMBANG BAWAH TANAH DEEP MILL LEVEL ZONE PT FREEPORT INDONESIA Mahatir Eko Sulastyo; Jance Murdjani Supit
INTAN Jurnal Penelitian Tambang Vol. 3 No. 1 (2020): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

In ground support of underground mine, it is important to understand the shotcrete delivery process, since shotcrete is the main buffer applied. The problem found in this study is that there is an indication that the shotcrete volume has not matched the reported shotcrete. So it is important to acknowledge the shotcrete delivery process, the difference in volume and the correction factor. Variables used to calculate shotcrete volume and correction factors obtained in nine main variables as follow: shotcrete trace length, shotcrete trace width, shotcrete trace height, shotcrete transfer distance, shotcrete transfer time, shotcrete transfer time, material weight, material density and shotcrete volume in the Daily Report. Descriptive statistical method is used to select anomaly data outside the population. The research results that average volume of shotcrete on the Batch Plant is 4.83 m³, then transferred to WS Mixer reduced to 4.76 m³ and at Getman the Mixer was reduced by 3.92 m³. The volume difference is due to the unequal aggregate conditions of the shotcrete constituents, the Mixer drum rotates outside the specified speed, shotcrete hardening occurs on the drum causing a reduction in drum volume capacity. Based on these differences, conversion values were obtained to the reported shotcrete volume, which is 0.87 with the shotcrete assumption reported at 4 m³, 0.89 assuming 5 m³ and 0.79 assuming 4.98 m³.

GEOMETRI JALAN ANGKUT DAN JARI-JARI TIKUNGAN MENGGUNAKAN TEORI AASHTO PADA PT PRO INTERTECH INDONESIA KOTA SORONG PROVINSI PAPUA BARAT Hamdan Tri Sanjaya; Ricardo O. M. Hutapea
INTAN Jurnal Penelitian Tambang Vol. 3 No. 2 (2020): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Hauling road is an important aspect to support hauling activities in a mining operation. Better hauling road conditions will optimalize production, where is consistent with production plans and targets. The calculation of road conditions should be adjusted to the needs. The road geometry is a part of road planning which focuses on the physical condition of the road so that it can fulfill the road function. In addition to the geometry of the hauling roads, water can also affect the condition of the hauling roads. Therefore, it is important to conduct an evaluation of the hauling road conditions. Based on the calculation results, the straight road width is 8,575 meters, the hauling road width at the bend is 19,356 meters, while the straight road width in the field is about 7.6 meters and for curves in the field about 9 meters. From the field processed data, it is indicated that the existing hauling roads at PT Pro Intertech Indonesia mining operation has not fully met the hauling road requirements. Therefore, it is necessary to widen the hauling road in the operation area.

ANALISIS PENGGANTIAN BACKHOE TAHUN PEMAKAIAN KELIMA DENGAN METODE NET ANNUAL VALUE PADA PT IFISHDECO Raymon Andre Maraya; Juanita R. Horman
INTAN Jurnal Penelitian Tambang Vol. 3 No. 2 (2020): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

PT Ifishdeco is a mining company that uses backhoe Sany SY-365 in its demolition activities. One of backhoes used has the greatest mechanical avaibility compared to others, so it is necessary to analyze the replacement of equipment in order to know the right time for replacement. The method used is the engineering economic method of Net Annual Value (NAV) with the concept of ‘defender’ and ‘challenger’ to analyze the cost and benefits of the equipment that can be distributed anually. To determine the NAV of an equipment and to know the the right time for replacement, it is necessary to know how much revenue and cost required for the backhoe to operate during the replacement of the old backhoe (defender) with a new backhoe (challenger) by conducting a replacement experiment in the first year after the tool operates until the end of the project life. The calculation results indicated that the replacement of equipment is more profitable at the sixth year of the project time, with NPV value of USD 29,530,448.96 and NAV value of USD 4,012,241.81.

PRODUKSI CRUSHING PLANT PT PULAU LEMON KABUPATEN MANOKWARI Frans Maduma Wijaya Malau; Hendri P. Perangin-Angin
INTAN Jurnal Penelitian Tambang Vol. 3 No. 2 (2020): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

PT. Pulau Lemon is a mining company especially in gravel quarry. Along with the existence of a project undertaken by the company, the demand for gravel material experiences instability (fluctuation). Therefore, it is necessary to plan the production of gravel well and evaluate the performance of the Crushing Plant. To evaluate the performance of the Crushing Plant, the calculation of the tool capacity, the value of the reduction ratio, tool recovery and work efficiency is carried out. The production plan only refers to the sales history of the last 4 years then averaged over the number of working days. Based on these calculations, it is known that the material intake is 183.43 tons/day, with a hopper capacity of 32.41 tons and a feeder capacity of 244 tons/hour. Crusher 1, 2, and 3 capacities are 502.21 tons/hour, 290.93 tons/hour, and 245.52 ton /hour respectively. The capacity of Conveyor 1 (rock ash) belt is 40.21 tons/day, Conveyor 2 (0.5 - 1 cm) is 35.01 tons/day, Conveyor 3 (1 - 2 cm) is 22.85 tons/day, and Conveyors (2 - 3 cm) of 28.96 ton /day. The value of Jaw Crusher 1 Reduction Ratio is 10.83, Jaw Crusher 2 Reduction Ratio is 5.20, Jaw Crusher 3 Reduction Ratio is 8.8, and Jaw Crusher 4 Reduction Ratio is 8.8. The recovery value at processing time is 69%, and the optimum work efficiency is 54%. The production plan obtained was 1,986.68 tons/day.

PRODUKVITAS ALAT ANGKUT UNTUK PEMUATAN NIKEL KE TONGKANG PT GAG NIKEL DISTRIK WAIGEO BARAT KEPULAUAN KABUPATEN RAJA AMPAT PROVINSI PAPUA BARAT Irene Lestari Sihombing; Jance Murdjani Supit
INTAN Jurnal Penelitian Tambang Vol. 3 No. 2 (2020): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

PT. Gag Nikel sales its product in the form of mix laterite with 1.8% nickel content. The shipping of the product conducted by transportation contractor PT. Sinar Terang Mandiri using nickel shipping barges. There are two barges used, Bisai barge and Seadragon barge. The planed loading capacity of Bisai barge is 13,000 MT in 3 days loading time while Seadragon barge is 8,000 MT in 2 days loading time. Thus, using 89 dump trucks per day, the working time rate of the Bisai barge is 6.95 hours/day while Sedragon barge is 4.92 hours/day. However, the actual loading capacity of Bisai barge is 12,550.27 MT in 4 days loading time while Seadragon barge is 7,528.64 MT in 3 days loading time. In as much, the loading efficiency is less than 100%. This issue most likely due to the utilization of the dump trucks, thus loading time efficiency using the dump trucks should be evaluate to understand the cause and find the solutions.

IDENTIFIKASI DAN PENILAIAN RISIKO K3 DI AREA STONE CRUSHER YANG BEROPERASI DI PRAFI, KABUPATEN MANOKWARI, PROVINSI PAPUA BARAT Pribowo Angling Kusumo
INTAN Jurnal Penelitian Tambang Vol. 3 No. 2 (2020): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Zero accident policy that proclaimed by the Government through the Ministry of Manpower and Transmigration must be implemented properly by all companies that operating in Indonesia. Zero accident can be accomplished by implemented Health and Safety in work (K3) and risk management in all companies, both small and large scale companies. The stone crusher company which operates in Prafi plain, Manokwari Regency, West Papua Province, is a high capital and high company with substantial assets, accidents might have happened during work projects. Assessment of the risk level of a stone crusher project can be done by conducting interviews, identification, observation and research to determine risk factors that may occur during work projects. The analysis shows that the stone crusher project has a low risk level (12%), moderate (39%) to high risk (49%). The high risk level percentage (49%) makes the stone crusher company obliged to carry out K3 management and risk control by involving K3 experts in every work project so that zero accident can be achieved.

KEBUTUHAN MATERIAL PENYEMENAN DALAM PENYEMENAN CASING LINER TUJUH INCH SUMUR X-13 LAPANGAN Y Hastowo Resesiyanto
INTAN Jurnal Penelitian Tambang Vol. 3 No. 2 (2020): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Cementing is a process of mixing cement powder, water and additives (cement slurry) which will be pumped into the wellbore through casing into the annulus along the wellbore. Liner is a casing hung onto the casing which has been set before. Before the calculation of cementing materials needed, it is needed to collect X-13 well data, in the form of well profile which is consist of casing and tubing dimension. Furthermore, laboratory data for cement and additives is also used. Based on the calculation, the total volume of cement slurry needed for open end interval cementing is 199.7 bbl, with the amount of cement sack needed is 595.2 sacks. The total solid additives needed is 21426.1 lbs and total liquid additives needed is 1294.542 gallons. The total volume of fluid needed to push the cement slurry into the cementing zone is 251.05 bbl.

Page 5 of 13 | Total Record : 124

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Arif Setiawan

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

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Contact Name Arif Setiawan

Contact Email a.setiawan@unipa.ac.id

Phone +6281248459584

Journal Mail Official a.setiawan@unipa.ac.id

Editorial Address Jl. Gn. Salju, Amban, Kec. Manokwari Barat. Kabupaten Manokwari, Papua Barat. 98314

Location Kab. manokwari, Papua barat INDONESIA

Abstract

Abstract

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Abstract

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Abstract

Abstract

Abstract

Contact Name
Arif Setiawan

Contact Email
a.setiawan@unipa.ac.id

Phone
+6281248459584

Journal Mail Official
a.setiawan@unipa.ac.id

Editorial Address
Jl. Gn. Salju, Amban, Kec. Manokwari Barat. Kabupaten Manokwari, Papua Barat. 98314

Location
Kab. manokwari,

Papua barat

INDONESIA